Learning Advantage Demonstration elapsed time ruler measures 60" x 5 1/2" and perfect for grades K - 6. Write on/wipe off time tool ruler features sharply delineated graduations for accuracy and used to measure time in a number line format.

Demonstration Elapsed Time Ruler, 60x5-1/2"

Write-on/wipe-off time tool

Allows students to measure time in a number line format where they can visually see where the time goes